Car-axle journal-box.



H. H. HEWITT.

CAR AXLE JOURNAL Box, APPLICATION PILBD'JULYB, 1910.

Patented Sept. 9, 1913.

-- preventing the leakage of lubricant frornthefl To all whom it mayfconcern:

STATES.

E TOFEIQE. l

- CAB-AXLE aonmnn nok.

Be-it known that I, HERBnIi'r HE'wrrr,

a citizen of the United States,"and aresident of Buffalo, county of 'Erie,tandtstateof New. York, haveinventedcertain new and useful Improvements in Car-Axlef Journal-f 130m, ofewhieh the following is a full, clear, and exact description.

The present invention relates to car-axle journal-boxes: and seeks tqprovide n'ieans for effectively lubricating the axle journals,

and,- tur'ther, to provide nnproved means for journal? box-and he access of 'dust', irflor the-likethereto; the improved construction ibeing more particularly applicable to Sthe caraajxlejournal box set' forth and'claimetl in 'an application for Letters Patent filed the United States .Patent'. Ofiice March-.7,

.1910,- Seri-al No..547,862.

The invention con's1sts:1n themotiel fee-j tnres hereinafter set forth; illustrated in the prefer-red ferin in the accompanying- .drawingsand, more; particularly "pointedout n theappendecl'claims. l In the="dra\vings, "Figure-lie a View m central vertical section of one of the-wheels ofthe car truck, the ear-axle .being sho'w'n in elevation .antlthe parts of the journ'allbox iii-section. Fri-g. 2-is a viewin vertiealisee.

- tien on the line 2-2'0f Fig. 1. "Fig; 3 isa detail perspective view of the guar'drmg' i er-mg journal B *taonon the for the journal box. -Fig.-4-is a tietixil'sec'; line 4.--4 of Fig.- 1, and "Fig, 5 is 'a detail perspective view -of. the; cap or thimble for closing the opening atthe outer endtofthe journal box.

A designates a car wheel that is fixed in the usnal'inanner to the car-a'xI e-ZB, As shown, the endof the. axle is reduced to that, is=encircled by a bear ing [sleeve C containcdwithin'the journal box 'lhe jonrnalhoii providedwith. a cylindrical opening to receive the sleeve C'.

Preferably,' the boxis fornied of a single pa-rta'nd is spherical in shape, as shown, The box isheld'in place-within an opening formed in the side frame E of'the ear trnek by annular keepers or retaining rings F, These retaining rings are SCl0\\'-l'lll'QR( l9tl into the opening of the side frame and are provided with semi-spheri -nl fares to properlyenga-ge the spherical body. portion of thejonrnal' box. At their outer portions,

the retainii'ig rings are; provided with flan ges which abut against a flange e formed on thev 'Spehitieation iit-lietters fatent. Application area J l -8,1910. seriamo:-571;o71. v

vuniversally within its-seat or socket.

egige of the pen ng. .o'fl'sets' g: are; preferably in the form of metal me ntime 9 51913.

, side frame ahout'theopening. -Bythisar- Iangement the j qurnalbox D. is securely held against lateral movement, but is flee to shift the sametixnet'jtfjs'free to rotate or creep withan thereta-lmn -members or rings F,.so

'thatficlitlerent port ons 'of the journal box and bearing sleeveC therein are brought to a po'sition to sustain;

of"the -cara:xle.' Forltrbrleat ng th'e journatbox, it is pro- .vided at, its outerrend with a chambered project-ioniD', Jwhich eisp-refer'ahly formed in piece with. the journal box. In the "form Ishovyn, --the 'pro ect-1ng 'portion 1) is semispher-ical'antl. a's'eriesof transverse webs (l are east w thin;1:h ch mber therein; There ;arel threefef these websT-m the form shown the thrnst-ofthe journal andl the. .eentral'v portions thereoftare eiit which normally closes a, central opening in the projection or lubricant containing part. D. The-Cap G isprovided with a series of offsets or. '-lateralf;.' rejections I 9' and the sprin'g H nernizi'llj iholds the cap in position to elosethe ppening" in'the' chambered part D"w1 thjthe-project1ons g engaging the. inner The 'pro'jeetionsjo'r tonguesstamped or "punched-outwardly from "thewall of. the cap G. /Sueh tongues orati- Sets will, have .siifiicient elasticity, so that,

opening in"the chambered" part 1) the tongnes gdyi ll spring outwardly to engage vthe inneriw'all '01. the ch'alnhered part l)'.' 'lhefspringQ'I-I'has its outer portion located,

wi-thinvnp 9,1 thii'nhle G, while its inner end 'bears..aga.i-nst"the" metal that unites 'the several-webs-d", as shotvnnilhgs. 1 and 4 -froin'the opening in thechambered .part l)f..

The part l) t.hus forms a suitable chamber for receiving grease or thick oil for lubricating the journal box. By pushing the rap or thilnhle G imvai'tll y the chamber of; the part- I) can filledWitlLg'lease or like lubricant.

:away-teifornrspaeefor acap or'thimhle G,

The cap is then :mtmnatitally restored to the position shown. to prvent even though theinternal diameter of the 45 of chambers or pockets is, which are open at their inner ends and arranged to receive the escape of lubricant and the entrance 'of dust and dirt to the journal box.

The 'bearing'sleeve C, which isrotatable v within the journal box D, abuts against a shoulder. d at the outer'end of the chamberiof the journal box. The inner end of the bearing sleeve coincides with the rc-' ,duced innerxendd of the journal box. That 18 to say, the inner end faces of the bean ing ring C and journal box D lie in the same plane and are. arranged to be engaged by a single guard ring 1K. This guard ring can be made of any -suitable metal and is mounted upon the reduced portion;

B of' the axle B, this reduced portion extending as shown to thelhub a of the wheel A. The outer face of the guard ring is machined to accuratelybear upon the inner ends of the journal box D and ofthe bearing sleeveC. Preferably, the guard ring K- is slightly larger in diameter than the end portion of the journal box, so that it shall at times securely close the endof thejournalbox and prevent the access of dust and dirt thereto and also prevent the escape of any excessive. amount of, lubricant therewill (preventthe escape of lubricant,notwith-- from. By this arrangement, the snug bearing -of the guard ring K against the ends of the bearing sleeve and journal box will.

effectively prevent the waste of lubricant,

bearing sleeve C is'increased by wear, or if the journal portion of the axle is reduced by wear. So. also the bearing of the guard ring uniformly upon the. ends of both the ournal box and bearing sleeve stan ingthe wear of the ends of such parts The coincidence of the inner end of thebearing sleeve and the inner end of the bearingbox also.insures that both these partsshall take the thrust and wear inci ent to the lateral movement of the truck.

The guard ring isprovided, n the preferred form of the invention, with a series a series of coiled springs L. The inner ends of these springs bear upon the hub a on the wheel A, and, as the springs are under compression, they serve to force the guard ring K outwardly and into a snug bearing .half inch of the journal).

violent lateral mot on of the truck, it will be found that the springs -L will take the I A will be brought up solidly against the" .ring' K, the springs belng forced, into the chambers of the ring, and furtherf-lageral' with the inner ends of the journal box D and bearing sleeve C. The thickness of the guard ring G is sufficiently less than the distance between the inner end of the journal box D and, the hub a'of the car wheel to permit a lateral play (say of about one- Incase of a first impact and then the hub of the wheel.

movement of the journal will be prevented as the shoulder bof the axle B will at the the ring'K. The guard ring thus not-only serves to exclude dust and like foreign inatterfrom the journal box, but, with its springs L alsoserves to cushion the shocks weal-upon thepar't'si The lubricant within the chamber of the part D passes-between the journal B and the bearing sleeve-"C, and, also between the bearing sleeve and the journal box D to lubricate the contacting" surfaces of these parts. The lubricant works through the ends thereof, but any waste of lubricant at this pointis prevented by the guard ring K. The journal B is not only revoluble orcreepwithili the journal box D, and, in a'.s1milar manner, the journal box itself may rotate or creep within its bearing, so

vpresented, thereby greatly prolonging the "life and effectiveness of the parts.

surface thereof and sufliciently lubricate the contacting surfaces of the box and of the retaining rings -F.

It is obvious that the details set forth may be'varied without departure from the essentials of the invention asdefincd in the claims.

I claim as new, and desire to secure by Letters Patent, is 1 ing a wheel fixed thereto,- and a projecting end journal, a car axle journal box having a cylindrical chamber therein to receive said journal, a bearing for said journal within .said cylindrical chamber, a support where- .in said 'car axle'journal box is rotatably spherical portion extending over the end of said chamber, said portion being hollow to form a lubricant receptacle, smaller in axial opening therein and an outwardly ing,' gjsubstantially as described 1", 2.;"1A par axle journal box chambered tosame timecontact with the, inner face ofincident to thelateral movements of thetruck and-therebyreduces the strain and I withinthe sleeveG, but the latter can rotate that new wearing surfaces are constantly spring presseddevice-for closing said open hearing sleeve and journal box to the inner This improved journal box is set forth box will pass around the outer spherical-- Having thus described my invention, what L The combination with a caraxle havdiameter than said chamber, and having an 120 mounted, said journal box being provided I at its outer end with a; projecting, semi-- receive a-journal and its bearing and provided at its outer end with a hollow projecting'portion extending over theend of 4 cap for closing said opening said chamber and having an axial .opening forthe admission of lubricant,'a sheet metal having integral, forwardly extending an jeeting fingers for engaging the edges of said opening, and a spring for pressing said cap outwardly.

3. A caraxle ournal box chambered to receive a journal and its bearing and provided atits outer 'end with ahollow pro W ject-ing p01ti0n forming a lubricant cha1n-' 15 her; said portion having internal transverse laterally proi -movement of the eap, substantially l-scribed.

.webs and a'n opening for the admission of lubricant, asheet metal cap for closing said 0penin"',-;;said cap being arranged within said hiflficant chamberand guided by said Webs, anda'spring for pressing said'cap outwardly, said sheet metal cap having later-.

ally projecting fingers engaging the edges of said opening for limiting the outward as de- HERBERT H. I-IEW T.

' Witnesses \VAL'rnn C. MuLL'n'r'r; EUGENE J. Commas. 

